问题
填空题
小肠绒毛内有三种重要结构，即（）、（）和（）。
答案
参考答案：中央乳糜管、毛细血管网、纵行平滑肌
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小肠绒毛内有三种重要结构，即（）、（）和（）。
参考答案：中央乳糜管、毛细血管网、纵行平滑肌
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| Clerk: Can I help you? Jenny: Yes, please. Do you __1__ black backpacks? Clerk: Yes, we have black ones, red ones __2__ blue ones. Jenny: How__3__ are they? Clerk: Each of them are fifteen __4__ . Jenny: Great! Well, I__5__ want a T-shirt. Can you tell me the prices of your T-shirts? Clerk: OK. Look! These red T-shirts__6__ seven dollars. Do you__7__ the color? Jenny: Yes, I do. How much are those yellow shorts__8__ the table? Clerk: Fifteen dollars each. And__9__ black T-shirts are twenty dollars. Jenny: OK! I'll__10__ a red one. Thank you. Clerk: You're welcome. | |||
| ( )1. A. have ( )2. A. or ( )3. A. long ( )4. A. dollar ( )5. A. also ( )6. A. am ( )7. A. find ( )8. A. for ( )9. A. this ( )10. A. bring | B. see B. but B. many B. dollars B. only B. is B. like B. of B. that B. take | C. want C. and C. much C. dollar's C. very C. are C. meet C. on C. those C. sell | |